On Thu, Nov 16, 2006 at 08:40:58AM +0000, Rob Fell wrote: > >Can you give me a hint on how to identify an inductor? My notebook case > > An inductor is a coil of wire wound (several turns) around some kind of > core. If it's an encapsulated type it may be harder to identify. They can take many forms, down to a simple ferrite bead on a wire. > Do you have a stethoscope? Unload the machine and get that noise back. > Now listen. Can you identify the component? That would work if the stethoscope's pickup is small. Or you could use a 'microphone probe', a small mic with an acoustic tube fitted. Another practical trick is this. You need a small wooden stick - it should be light, hard, and of course non-conducting. A wooden match or toothpick would do. Use it to *lightly* touch the component you suspect. This should change the sound, and you may also feel it with your fingers. -- FA Lascia la spina, cogli la rosa.
